Having a DIY rainwater catchment system is something that I believe everyone should look into (as long as it is legal at where you are from). Why? When SHTF, running water will cease to be available like how it easily flows from the tap like we have now. More so, even if you are not prepping for SHTF, rainwater is free water which can save you a lot of cash, especially if you use large amounts of water like for a pool or a big garden or farm.
Why Make a DIY Rainwater Catchment System
Did you know that as much as 600-1,200 gallons of water falls freely on your roof for every rainfall if you happen to have 1,000 square foot of roof surface area? That’s more than enough water to last a month or even a few months depending on your water usage!
If you love learning about SHTF prepping or homesteading and saving tips, then this SHTF Dad article on DIY rainwater catchment system is for you! Today, we will talk about how you can use all the free rainwater with the use of tips and tricks about making a DIY rainwater catchment system and videos on how to build a DIY rainwater catchment system for yourself!
DIY Rainwater Catchment System Benefits
In a SHTF scenario, a rainwater catchment system will shower benefits you and your love ones such as the following:
- Provide potable clean water for daily needs such as drinking, cleaning, cooking, bathing, growing crops, and feeding livestock.
- Water becomes a valuable commodity which you can use to trade with other survivors when SHTF.
- Water will keep you alive when food is scarce. When things go as bad as they can get, you can survive for weeks without food but only a few days without water. It really is the key to life and survival!
Whew! I might have gone a bit too excited about water above, but you do know it is all true. So how do we build this DIY rainwater catchment system?
DIY Rainwater Catchment System Materials
First step is to choose the right materials, and by that, I mean safe materials. Do you know that many materials which we use in building our houses actually leech out toxic chemicals? If you are going to build a rainwater catchment system, you have to know which materials are safe to use, especially if your children will be drinking water from it when SHTF.
A good resource to look into would be to look at the set guidelines in places which rely on rainwater catchment systems, like Hawaii. 30 to 60 thousand people in Hawaii rely on rainwater to survive and use water from a rainwater catchment system for the whole year.
Consideration for Materials
What makes up the rainwater catchment system is your whole material. You need to check the condition and materials used for your roof, gutters, pipes and tank because they can cause contamination of your water supply.
Another concern for the materials is its condition, surroundings and maintenance. Toxins and harmful microorganisms can be fatal so this is especially important if you are going to drink the water.
Toxins in Materials
Roofs can be a source of toxins. Galvanized iron roof may have high lead, zinc and copper concentrations. These metals can kill if ingested in unsafe levels.
Pipes and faucets can be harmful too. Old pipes which are made of copper may have lead, same as brass faucets. If you can’t afford to replace these parts, you can coat them with a non-toxic coating to protect your water.
Tank Size for DIY Rainwater Catchment System
Remember, size should meet your needs and the space that you have. It should also be appropriate for the expected amount of rainwater you want it to hold and store. You might want to go take a look at how much rainwater your area receives before deciding on a tank size. You may check the expected amount of rainfall at the National Climatic Data Center for this.
Here are some reliable and good quality rain catching barrels
DIY Rainwater Catchment System Videos
Below are additional video resources I would like to share with you.
Here is a video introducing the use of rainwater catchment systems: